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Which of the following describes external respiration?

Oxygen diffuses out of the blood into the tissue cells.

Carbon dioxide diffuses from the tissue cells into the blood.

There is an exchange of gases between the lung alveoli and the blood capillaries.

All of the above

How would you compare a health care system in ancient egypt and a interdisciplinary health care team? a) these systems are quite similar; the only difference is that interdisciplinary teams today have better technology. b) these systems are very different; in ancient egypt, the team was all ranked the same, where today, the teams all have different rankings based on importance. c) an interdisciplinary team shares goals and responsibilities. in ancient egypt, each level of professionals had different goals and responsibilities. d) today's interdisciplinary teams are structured as hierarchies. in ancient egypt, these teams were patient focused.

Stan is a ninth grader involved in active sports. which list of food would provide him with a balanced diet

Alberta is a 20 year old who has been a vegetarian for 3 years. she comes to you for advice after reading some material online by the meat promoters of america organization. one of their statements is: ". . vegetarians are at risk for protein deficiency because they cannot consume all of the essential amino acids necessary for healthy individuals." how should alberta be advised? she should consume dairy and egg products at every meal to protect herself against protein deficiency she should avoid the "limiting" amino acids because they are limiting her ability to maintain proper protein status because the statement is basically true, she should consider eating small quantities of meat every day in order to avoid protein deficiency although many foods don't provide all the essential amino acids individually, she could consume complementary proteins throughout the day, which would provide all the essential amino acids she needs